--- /dev/null
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include "platform_def.h"
+#include "pmic_wrap_init.h"
+
+/* pmic wrap module wait_idle and read polling interval (in microseconds) */
+enum pwrap_polling_interval {
+ WAIT_IDLE_POLLING_DELAY_US = 1,
+ READ_POLLING_DELAY_US = 2
+};
+
+static uint32_t pwrap_check_idle(void *wacs_register, uint32_t timeout_us)
+{
+ uint32_t reg_rdata = 0U, retry;
+
+ retry = (timeout_us + WAIT_IDLE_POLLING_DELAY_US) /
+ WAIT_IDLE_POLLING_DELAY_US;
+ while (retry != 0) {
+ udelay(WAIT_IDLE_POLLING_DELAY_US);
+ reg_rdata = mmio_read_32((uintptr_t)wacs_register);
+ if (GET_WACS_FSM(reg_rdata) == SWINF_FSM_IDLE) {
+ break;
+ }
+ retry--;
+ };
+
+ if (retry == 0) {
+ /* timeout */
+ return E_PWR_WAIT_IDLE_TIMEOUT;
+ }
+
+ return 0U;
+}
+
+static uint32_t pwrap_check_vldclr(void *wacs_register, uint32_t timeout_us)
+{
+ uint32_t reg_rdata = 0U, retry;
+
+ retry = (timeout_us + READ_POLLING_DELAY_US) / READ_POLLING_DELAY_US;
+ while (retry != 0) {
+ udelay(READ_POLLING_DELAY_US);
+ reg_rdata = mmio_read_32((uintptr_t)wacs_register);
+ if (GET_WACS_FSM(reg_rdata) == SWINF_FSM_WFVLDCLR) {
+ break;
+ }
+ retry--;
+ };
+
+ if (retry == 0) {
+ /* timeout */
+ return E_PWR_WAIT_IDLE_TIMEOUT;
+ }
+
+ return 0U;
+}
+
+static int32_t pwrap_wacs2(uint32_t write, uint32_t adr, uint32_t wdata,
+ uint32_t *rdata, uint32_t init_check)
+{
+ uint32_t reg_rdata, return_value;
+
+ if (init_check != 0) {
+ if ((mmio_read_32((uintptr_t)&mtk_pwrap->init_done) & 0x1) == 0) {
+ ERROR("initialization isn't finished\n");
+ return E_PWR_NOT_INIT_DONE;
+ }
+ }
+
+ /* Wait for Software Interface FSM state to be IDLE. */
+ return_value = pwrap_check_idle(&mtk_pwrap->wacs2_sta,
+ PWRAP_WAIT_IDLE_US);
+ if (return_value != 0) {
+ return return_value;
+ }
+
+ /* Set the write data */
+ if (write == 1) {
+ /* Set the write data. */
+ mmio_write_32((uintptr_t)&mtk_pwrap->wacs2_wdata, wdata);
+ }
+
+ /* Send the command. */
+ mmio_write_32((uintptr_t)&mtk_pwrap->wacs2_cmd, (write << 29) | adr);
+
+ if (write == 0) {
+ /*
+ * Wait for Software Interface FSM state to be WFVLDCLR,
+ * read the data and clear the valid flag.
+ */
+ return_value = pwrap_check_vldclr(&mtk_pwrap->wacs2_sta,
+ PWRAP_READ_US);
+ if (return_value != 0) {
+ return return_value;
+ }
+
+ if (rdata == NULL) {
+ return E_PWR_INVALID_ARG;
+ }
+
+ reg_rdata = mmio_read_32((uintptr_t)&mtk_pwrap->wacs2_rdata);
+ *rdata = reg_rdata;
+ mmio_write_32((uintptr_t)&mtk_pwrap->wacs2_vldclr, 0x1);
+ }
+
+ return return_value;
+}
+
+/* external API for pmic_wrap user */
+int32_t pwrap_read(uint32_t adr, uint32_t *rdata)
+{
+ return pwrap_wacs2(0, adr, 0, rdata, 1);
+}
+
+int32_t pwrap_write(uint32_t adr, uint32_t wdata)
+{
+ return pwrap_wacs2(1, adr, wdata, 0, 1);
+}
--- /dev/null
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <pmic.h>
+#include <pmic_wrap_init.h>
+
+void pmic_power_off(void)
+{
+ pwrap_write(PMIC_PWRHOLD, 0x0);
+}
--- /dev/null
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PMIC_H
+#define PMIC_H
+
+#define PMIC_PWRHOLD 0xa08
+
+/* external API */
+void pmic_power_off(void);
+
+#endif /* PMIC_H */
--- /dev/null
+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PMIC_WRAP_INIT_H
+#define PMIC_WRAP_INIT_H
+
+#include <stdint.h>
+
+#include "platform_def.h"
+
+/* external API */
+int32_t pwrap_read(uint32_t adr, uint32_t *rdata);
+int32_t pwrap_write(uint32_t adr, uint32_t wdata);
+
+static struct mt8192_pmic_wrap_regs *const mtk_pwrap = (void *)PMIC_WRAP_BASE;
+
+/* PMIC_WRAP registers */
+struct mt8192_pmic_wrap_regs {
+ uint32_t init_done;
+ uint32_t reserved[799];
+ uint32_t wacs2_cmd;
+ uint32_t wacs2_wdata;
+ uint32_t reserved1[3];
+ uint32_t wacs2_rdata;
+ uint32_t reserved2[3];
+ uint32_t wacs2_vldclr;
+ uint32_t wacs2_sta;
+};
+
+#define GET_WACS_FSM(x) ((x >> 1) & 0x7)
+
+/* macro for SWINF_FSM */
+#define SWINF_FSM_IDLE (0x00)
+#define SWINF_FSM_REQ (0x02)
+#define SWINF_FSM_WFDLE (0x04)
+#define SWINF_FSM_WFVLDCLR (0x06)
+#define SWINF_INIT_DONE (0x01)
+
+/* timeout setting */
+#define PWRAP_READ_US 1000
+#define PWRAP_WAIT_IDLE_US 1000
+
+/* error information flag */
+enum pwrap_errno {
+ E_PWR_INVALID_ARG = 1,
+ E_PWR_INVALID_RW = 2,
+ E_PWR_INVALID_ADDR = 3,
+ E_PWR_INVALID_WDAT = 4,
+ E_PWR_INVALID_OP_MANUAL = 5,
+ E_PWR_NOT_IDLE_STATE = 6,
+ E_PWR_NOT_INIT_DONE = 7,
+ E_PWR_NOT_INIT_DONE_READ = 8,
+ E_PWR_WAIT_IDLE_TIMEOUT = 9,
+ E_PWR_WAIT_IDLE_TIMEOUT_READ = 10,
+ E_PWR_INIT_SIDLY_FAIL = 11,
+ E_PWR_RESET_TIMEOUT = 12,
+ E_PWR_TIMEOUT = 13,
+ E_PWR_INIT_RESET_SPI = 20,
+ E_PWR_INIT_SIDLY = 21,
+ E_PWR_INIT_REG_CLOCK = 22,
+ E_PWR_INIT_ENABLE_PMIC = 23,
+ E_PWR_INIT_DIO = 24,
+ E_PWR_INIT_CIPHER = 25,
+ E_PWR_INIT_WRITE_TEST = 26,
+ E_PWR_INIT_ENABLE_CRC = 27,
+ E_PWR_INIT_ENABLE_DEWRAP = 28,
+ E_PWR_INIT_ENABLE_EVENT = 29,
+ E_PWR_READ_TEST_FAIL = 30,
+ E_PWR_WRITE_TEST_FAIL = 31,
+ E_PWR_SWITCH_DIO = 32
+};
+
+#endif /* PMIC_WRAP_INIT_H */
#define GPIO_BASE (IO_PHYS + 0x00005000)
#define SPM_BASE (IO_PHYS + 0x00006000)
+#define PMIC_WRAP_BASE (IO_PHYS + 0x00026000)
#define IOCFG_RM_BASE (IO_PHYS + 0x01C20000)
#define IOCFG_BM_BASE (IO_PHYS + 0x01D10000)
#define IOCFG_BL_BASE (IO_PHYS + 0x01D30000)
-I${MTK_PLAT_SOC}/drivers/ \
-I${MTK_PLAT_SOC}/drivers/gpio/ \
-I${MTK_PLAT_SOC}/drivers/mcdi/ \
+ -I${MTK_PLAT_SOC}/drivers/pmic/ \
-I${MTK_PLAT_SOC}/drivers/spmc/ \
-I${MTK_PLAT_SOC}/drivers/timer/
lib/cpus/aarch64/cortex_a55.S \
lib/cpus/aarch64/cortex_a76.S \
plat/common/plat_gicv3.c \
+ ${MTK_PLAT}/common/drivers/pmic_wrap/pmic_wrap_init_v2.c \
${MTK_PLAT}/common/mtk_plat_common.c \
${MTK_PLAT}/common/params_setup.c \
${MTK_PLAT_SOC}/aarch64/platform_common.c \
${MTK_PLAT_SOC}/aarch64/plat_helpers.S \
${MTK_PLAT_SOC}/bl31_plat_setup.c \
+ ${MTK_PLAT_SOC}/drivers/pmic/pmic.c \
${MTK_PLAT_SOC}/plat_pm.c \
${MTK_PLAT_SOC}/plat_topology.c \
${MTK_PLAT_SOC}/plat_mt_gic.c \
projects / arm-tf.git / commitdiff